Abstract: The genus Echthronomas Foerster is found for the first time in China. A new species, collected in Nanjing, is described in this peper. A type specimen is deposited in thais new species is similar to E. granulosus Gupta, but differs from the latter in the following characters: Flagellum with 39 segments; face black except the up margin very narrowly yellow; nervulus distad of hasal vein by 0. 25 its length; thyridium separated from the base of tergite 2 by 0. 8 its diameter. Holotype: female, Nanjing, June 14, 1993. Sheng Maoling.